Process of producing multicolored screens for photography



I KITSEE.

PROCESS OF PRODUCING MULTICOLORED SCREENS FOR PHOTOGRAPHY.

' APPLICATION FIL ED JAN. 17. I919. 1,426,995 PatentedAug.22,1922.

' difierent photographic purposes may 1 urations of U'NTTED STATES PATENT FlFllo TSIDUR KITSEE, 0F PHILADELPHIA, PENNSYLVANIA.

asses.

To all whom it may concern:

Be it known that 1, lemon Krrsfin; a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new. and useful Improvements in Processes of Producing Multicolored Screens for l ho-tography, of which the following is a specification. My invention relates to the process of producing multi colored screens ntegral with photographic blanks, such for lnstance as moving picture films and I will describe here my invention as applied to moving picture films, it being obvious, that blanks for be substituted therefor;

.T have discovered that it is possible to apply to a gelatine or like medium, with which such blanks are usually provided, figone color and then wash the whole blank with thereby tinting the free spaces between the figurations with a second color, without unduly interfering with the color of these figurations. J

The accompanying drawing illustrates some forms my invention may take. In this drawing the Figs. 1, 2, 3, are plan views of part of a film in different stages of producing thereon'the multi-colored screen, and elect here for this purpose, a color screen comprising the colors green and red.

ll first produce on the surface of gelatine or similar medium the figurations, here dots, colored green. These figurations may be applied to the gelatine or similar medium with the aid of rollers or other printing devices or with the aid of sprays or devices similar in their action. Tn fact, for the purpose of my invention, it is immaterial through what means these figurations are applied to the gelatine film, so alsois it immaterial for the purpose of my invention what form these figurations may assume. But the nature of the solution has to be strictly adhered to.

In the course of my experiments I have discovered, that it a solution of dissolved resin is provided with the required color and the figurations applied with this solution on the gelatine or similar film, no running or streaking of the color occurs and the figurations are clearly and sharply defined, by preference I use Canada balsam dissolved in alcohol. I have also discovered, that if a dye-solution consisting only oi the dye Specification of Letters Patent.

the aid 7 of a second, color,"

Patented Aug. 22,

Application filed January 17, 1919. Serial No. 271,710.

proper dissolved in water is then applied to the film on which the figurations are placed, the figurations will not take up the color of this second solution, but the free gelatine will readily be tinted with the color of this second solution.

v ,To proceed therefore, in accordance with my invention, to produce the. multi-colored screen it is only necessaryto first apply the gurations or" the first solution onto the gelatine or similar film and then tint the uncolored spaces with the aid of the second solution by simply going over the whole film with a sponge or wad of cotton dipped in the second solution, or the whole film may simply be immersed in this second solution, as neither the figurations, out of which the film consists is injuriously afi'ected by this second solution. 4

In the figures, illustrating one form of my invention, 1 is part of the film proper, 1 the perforations with which these films are usually provided; 2 indicates .the layer of gelatine or similar material, 3 the figurations, here represented by dots, and a the colored spaces between said figurations. The figurations are here ing a green color and the free spaces between said figurations as being colored red, it being obvious that other colors may be ll selected.

nor the celluloid illustrated as represent- The figurations themselves, as well as the free area between these figurations are greatly exaggerated in size, so as to clearly bring out the color of same, but in reality each of these figurations only occupy a very small part ofan inch and the space between two of these figurations is of about like dimension.

The finished film should be washed, so as to remove the surplus color.

Having now described my invention, 1 claim as-new, and desire to secure by ters Patent is 1. The process of producing a multiwhat colored screen integral with a movingpicture film which consists in producing figurations on the gelatinous substratum of said film with the aid of a colored alcoholic solution containing a dissolved resin and coloring the inter-spaces between said figurations with the aid of a dye insoluble in alcohol.

2. In the art oi producing multi-colored screens integral with moving picture films the improvement which consists in first producing figurations of one color on the gelat- Letllltl Q y j 1,426,995

inous substratum of said'film with the aid of an alcoholic dye-solution containing a 'dis'so lyed resin, and-then tinting the free 10 and then with a second color through the process of immersing the whole film in a solution containing a second color, one of said colorsmiscible only in alcohol and one Y of said 00 ors miscible only in water.

In testimony whereof Ifaflix iny signature 15 in the presence of two witnesses.

- ISIDOR KITSEE." I Witnesses:

'E. E. MILL R,

JOHN J. R ii? 

